Is wealth a crime? A serial killer is targeting wealthy former employees of Delpont, a financial trading company shut down ten years prior for falsified financials and fraud. Will Martec is a young economic journalist, who wrote a thesis predicting the global financial crisis. Aoki Sun is a hardworking and talented detective, but struggles with anxiety and insomnia. As Will and Aoki are brought together to investigate the deaths, they come to realise that the full story of Delpont was never told.